... DescriptionModel Number(s): A1278Compatible Model(s):MacBook Pro 13.3" 2.26GHz Core 2 Duo (MB990LL/A, A1278, MacBookPro5,5) - Mid 2009MacBook ... Pro 13.3" 2.66GHz Core 2 Duo (MC375LL/A, A1278, MacBookPro7,1) - Mid 2010MacBook Pro 13.3" 2.3GHz Core i5 (MC700LL/A, A1278 ... , MacBookPro8,1) - Early 2011MacBook Pro 13.3" 2.7GHz Core i7 (MC724LL/A, ...